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Colored golf ball

Active Publication Date: 2011-09-15
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0015]As described above, colored golf balls have been proposed in order to give the visibility and the fashionable appearance. However, conventional colored golf balls do not necessarily provide high-performance with respect to the flight distance, abrasion resistance and controllability. The present invention has been achieved in view of the above circumstances. An object of the present invention is to provide a golf ball having a high performance as well as the visibility and the fashionable appearance.
[0017]In one preferable embodiment, the present invention includes a colored golf ball having a color other than white and comprising: a core having a center and at least one intermediate layer disposed around the center, and a cover disposed around the core, wherein at least one of the intermediate layer contains a fluorescent dye and / or a fluorescent pigment and a mass adjusting agent; and the cover contains a fluorescent dye and / or a fluorescent pigment. In this embodiment, since the intermediate layer and the cover contain the fluorescent dye and / or the fluorescent pigment, the resultant golf ball develops a deep and vivid color tone. Further, the intermediate layer contains a mass adjusting agent. Use of the mass adjusting agent increase a density of the intermediate layer and enhance the inertia moment of the golf ball. As a result, the golf balls provide low spin on a driver shot, and thus give a great distance and direction stability.
[0019]In yet another preferable embodiment, the present invention includes a colored golf ball having a color other than white and comprising: a core having a center and at least one intermediate layer disposed around the center, a cover formed around the core, and a paint layer formed on the cover, wherein at least one of color differences (ΔE*) between the intermediate layer and the cover, between the intermediate layer and the paint layer, and between the cover and the paint layer is 12 or less in CIELAB color coordinate system. If the above color difference falls within the above range, the parting line does not become perceptive, and thus the golf ball has a good appearance.

Problems solved by technology

However, conventional colored golf balls do not necessarily provide high-performance with respect to the flight distance, abrasion resistance and controllability.

Method used

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Examples

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examples

[0156]Hereinafter, the present invention will be described in detail by way of example. The present invention is not limited to examples described below. Various changes and modifications can be made without departing from the spirit and scope of the present invention.

[Evaluation]

(1) Color Tone

[0157]Color tones of the intermediate layers, covers and paint layers were measured using a color difference meter named “CR-221” manufactured by MINOLTA CO using a pulse xenon lamp as a light source. The measurement was conducted on ball, not a slab. That is, the color tone of the intermediate layer was measured in a state of the core where the intermediate layer was formed on the center. The color tone of the cover was measured in a state of the golf ball body where the cover was formed on the core. The color tone of the paint layer was measured in a state of the golf ball where the paint layer was formed on the golf ball body.

(2) Surface Hardness of Center, Inner core and Outer Core (JIS-C ...

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PUM

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Abstract

An object of the present invention is to provide a golf ball having a high performance as well as the visibility and the fashionable appearance. The present invention provides a colored golf ball having a color other than white and comprising: a core having a center and at least one intermediate layer disposed around the center, and a cover disposed around the core, wherein the cover and at least one of the intermediate layer preferably contain a fluorescent dye and / or a fluorescent pigment.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a colored golf ball.DESCRIPTION OF THE RELATED ART[0002]Conventionally, golf balls have a white color. In the case of bad weather conditions such as rainy, cloudy, foggy and dim conditions, it is difficult to follow the trajectory of the white colored golf ball and find where the golf ball stops. It is also difficult to find the white colored golf ball when the white colored golf ball stops on the dead grass.[0003]Recently, the fashionable golf balls are required with an increase in the population of golf players. Under these circumstances, colored golf balls have been proposed to satisfy the requirements of the visibility and the fashionable appearance.[0004]U.S. Pat. No. 6,561,923 (corresponding to JP 2000-24139 A) discloses a colored golf ball comprising a core having at least one layer and a cover having at least one layer formed on the core, wherein the outermost layer of the cover contains 3.0 to 7.0 parts by weight ...

Claims

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Application Information

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IPC IPC(8): A63B37/00A63B37/02A63B37/12
CPCA63B37/0003A63B37/0022A63B37/0031A63B37/0033A63B37/0047A63B37/0075A63B37/0064A63B37/0065A63B37/0097A63B43/008A63B37/0063A63B37/00223
Inventor TACHIBANA, KOSUKEOHAMA, KEIJI
Owner SUMITOMO RUBBER IND LTD
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